Notes in B7
The B7 chord contains 4 notes: B, E♭, F♯, A
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | B | Root |
| 3 | 4 | E♭ | Major 3rd |
| 5 | 7 | F♯ | Perfect 5th |
| ♭7 | 10 | A | Minor 7th |
About B Dominant 7th Chords
Dominant 7th chords add a flatted 7th to a major triad, creating tension that wants to resolve. They're the backbone of blues, jazz, funk, and rock. In a standard key, the dominant 7th chord built on the 5th degree naturally resolves to the I chord.
Compatible Scales & Modes
These scales contain all the notes of B7 and can be used for soloing, improvising, and writing melodies over this chord.
EXPLORE MODES
Playing Gb dominant seventh on Guitar
The Gb dominant seventh chord, spelled B, E♭, F♯, A, occupies a specific harmonic role that depends on the musical context. In the key of Gb major, this chord can function as a primary harmony or as a passing color depending on where it appears in the progression. Understanding which scale degrees produce Gb-rooted chords helps you predict chord progressions and improvise melodies that complement the harmony.
On guitar, Gb dominant seventh voicings benefit from second-fret positions that work well with capo techniques. The physical shape of this chord on the fretboard determines its tonal character — the same notes arranged in different voicings produce noticeably different sounds due to string gauge, fret position, and overtone content. Experiment with playing Gb dominant seventh in multiple positions to find the voicing that best fits the register and texture of the music you are working on.
The Gb dominant seventh creates harmonic tension through its minor seventh interval. This tension naturally resolves down a fifth, making Gb7 the strongest pull toward the chord a fifth below it. This V-to-I resolution is the engine driving most Western harmonic progressions.
When practicing Gb dominant seventh, use the compatible scales listed above to improvise melodies and riffs. Start by playing the chord, then explore the scale tones one at a time to hear how each note sounds against the harmony. This ear training exercise connects your theoretical knowledge of Gb-rooted chords to practical musicianship skills that improve your playing across all genres and styles.